This category is for American football at Haverford College. ...
(from the article `flare`) ...light produced by a mixture of sulfur, saltpetre, and orpiment. These blue lights, as they were called, were and still are often used at sea for ...
A Bengal Light was a kind of firework often used for signalling by night at sea, and producing a steady vivid blue-coloured flame.
[n] - a steady bright blue light
noun a steady bright blue light; formerly used as a signal but now a firework